Investigation on Co–Modified NixMgyO solid solutions for hydrogen production from steam reforming of acetic acid and a model blend

This paper is focused on the Co-modified NixMgyO solid solutions (10wt% Ni, 2-6wt% Co) for the steam reforming of acetic acid and a model blend. The pristine rocksalt structured NixMgyO solid solution and the modified NixMgyO-Co catalysts were synthesized via hydrothermal method and co-impregnation....

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Main Authors: Luo, Xiang, Hong, Yu, Shi, Kaiqi, Yang, Gang, Pang, Chengheng, Lester, Edward, Jiang, Lei, Wu, Tao
Format: Article
Language:English
Published: Wiley-Blackwell 2019
Subjects:
Online Access:https://eprints.nottingham.ac.uk/59578/
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author Luo, Xiang
Hong, Yu
Shi, Kaiqi
Yang, Gang
Pang, Chengheng
Lester, Edward
Jiang, Lei
Wu, Tao
author_facet Luo, Xiang
Hong, Yu
Shi, Kaiqi
Yang, Gang
Pang, Chengheng
Lester, Edward
Jiang, Lei
Wu, Tao
author_sort Luo, Xiang
building Nottingham Research Data Repository
collection Online Access
description This paper is focused on the Co-modified NixMgyO solid solutions (10wt% Ni, 2-6wt% Co) for the steam reforming of acetic acid and a model blend. The pristine rocksalt structured NixMgyO solid solution and the modified NixMgyO-Co catalysts were synthesized via hydrothermal method and co-impregnation. The activity of the catalysts was evaluated in the temperature range of 500-800 °C with a steam/carbon molar ratio of 3 and a gas hourly space velocity (GHSV) of 57,000 h-1. Low cobalt content (Co loading = 2wt%) catalysts exhibited significant promotion of H2 yield via enhancement of both water-gas shift (WGS) reaction and methane decomposition. A 30-hour test at 700 °C achieved excellent acetic acid conversion rate and H2 yield of 99.1% and 86.9%, respectively. However, the catalysts with higher cobalt loading (Co loading ≥ 4wt%) suffered a much quicker deactivation mainly due to carbon deposition. In addition, the catalysts were also tested on a model blend combined acids, alcohols and aromatic species and exhibited outstanding performance with carbon conversion above 90% and H2 yield above 70% for 100 h.
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spelling nottingham-595782019-12-11T01:46:53Z https://eprints.nottingham.ac.uk/59578/ Investigation on Co–Modified NixMgyO solid solutions for hydrogen production from steam reforming of acetic acid and a model blend Luo, Xiang Hong, Yu Shi, Kaiqi Yang, Gang Pang, Chengheng Lester, Edward Jiang, Lei Wu, Tao This paper is focused on the Co-modified NixMgyO solid solutions (10wt% Ni, 2-6wt% Co) for the steam reforming of acetic acid and a model blend. The pristine rocksalt structured NixMgyO solid solution and the modified NixMgyO-Co catalysts were synthesized via hydrothermal method and co-impregnation. The activity of the catalysts was evaluated in the temperature range of 500-800 °C with a steam/carbon molar ratio of 3 and a gas hourly space velocity (GHSV) of 57,000 h-1. Low cobalt content (Co loading = 2wt%) catalysts exhibited significant promotion of H2 yield via enhancement of both water-gas shift (WGS) reaction and methane decomposition. A 30-hour test at 700 °C achieved excellent acetic acid conversion rate and H2 yield of 99.1% and 86.9%, respectively. However, the catalysts with higher cobalt loading (Co loading ≥ 4wt%) suffered a much quicker deactivation mainly due to carbon deposition. In addition, the catalysts were also tested on a model blend combined acids, alcohols and aromatic species and exhibited outstanding performance with carbon conversion above 90% and H2 yield above 70% for 100 h. Wiley-Blackwell 2019-09-05 Article PeerReviewed application/pdf en cc_by https://eprints.nottingham.ac.uk/59578/1/Investigation%20on%20Co%E2%80%93Modified%20NixMgyO%20Solid%20Solutions%20for%20Hydrogen%20Production%20from%20Steam%20Reforming%20of%20Acetic%20Acid%20and%20a%20Model%20Blend.pdf Luo, Xiang, Hong, Yu, Shi, Kaiqi, Yang, Gang, Pang, Chengheng, Lester, Edward, Jiang, Lei and Wu, Tao (2019) Investigation on Co–Modified NixMgyO solid solutions for hydrogen production from steam reforming of acetic acid and a model blend. ChemistrySelect, 4 (33). pp. 9829-9835. ISSN 2365-6549 Acetic acid; Co-modified catalyst; Hydrogen production; Steam reforming; Water-gas shift reaction http://dx.doi.org/10.1002/slct.201900687 doi:10.1002/slct.201900687 doi:10.1002/slct.201900687
spellingShingle Acetic acid; Co-modified catalyst; Hydrogen production; Steam reforming; Water-gas shift reaction
Luo, Xiang
Hong, Yu
Shi, Kaiqi
Yang, Gang
Pang, Chengheng
Lester, Edward
Jiang, Lei
Wu, Tao
Investigation on Co–Modified NixMgyO solid solutions for hydrogen production from steam reforming of acetic acid and a model blend
title Investigation on Co–Modified NixMgyO solid solutions for hydrogen production from steam reforming of acetic acid and a model blend
title_full Investigation on Co–Modified NixMgyO solid solutions for hydrogen production from steam reforming of acetic acid and a model blend
title_fullStr Investigation on Co–Modified NixMgyO solid solutions for hydrogen production from steam reforming of acetic acid and a model blend
title_full_unstemmed Investigation on Co–Modified NixMgyO solid solutions for hydrogen production from steam reforming of acetic acid and a model blend
title_short Investigation on Co–Modified NixMgyO solid solutions for hydrogen production from steam reforming of acetic acid and a model blend
title_sort investigation on co–modified nixmgyo solid solutions for hydrogen production from steam reforming of acetic acid and a model blend
topic Acetic acid; Co-modified catalyst; Hydrogen production; Steam reforming; Water-gas shift reaction
url https://eprints.nottingham.ac.uk/59578/
https://eprints.nottingham.ac.uk/59578/
https://eprints.nottingham.ac.uk/59578/